White Rodgers 1F81-71 specifications Operator Save these instructions for future use, Description

1F81-71

Programmable Electronic

WHITE-RODGERSDigital Automatic Changeover Multi-stage Thermostat

INSTALLATION AND

OPERATION INSTRUCTIONS

Operator: Save these instructions for future use!

FAILURE TO READ AND FOLLOW ALL INSTRUCTIONS CAREFULLY BEFORE INSTALLING OR OPERATING THIS CONTROL COULD CAUSE PERSONAL INJURY AND/OR PROPERTY DAMAGE.

Your new White-Rodgers 5-Day/2-Day Digital Multi-stage Ther- mostat uses the technology of a solid-state microcomputer to provide precise time/temperature control. This thermostat offers you the flexibility to design heating and cooling programs that fit your needs.

Features:

•Separate 5-day (weekday) and 2-day (weekend) programming with four separate time/temperature periods per program

•Simultaneous heat and cool program storage

•Optional C terminal (dual power option)

•Optional Energy Management Recovery (EMR)

DESCRIPTION

•Optional B and O terminals

•Preprogrammed temperature control

•LCD continuously displays set point, and alternately dis- plays time and room temperature

•Temperature override until next program period

•Manual program override (HOLD temperature)

•°F/°C convertibility

•Temperature range 45° to 90°F

•Two-stage heat/two-stage cool

•Armchair programming capability

PRECAUTIONS

This thermostat is intended for use with a 24-volt system; do not use this thermostat with a millivolt or line voltage system. If in doubt about whether your wiring is millivolt, line, or low voltage, have it inspected by a qualified heating and air conditioning contractor or electrician.

Do not exceed the specification ratings.

All wiring must conform to local and national electrical codes and ordinances.

This control is a precision instrument, and should be handled carefully. Rough handling or distorting components could cause the control to malfunction.

!CAUTION

To prevent electrical shock and/or equipment damage disconnect electric power to system at main fuse or circuit breaker box until installation is complete.

!WARNING

Do not use on circuits exceeding specified voltage. Higher voltage will damage control and could cause shock or fire hazard.

Do not short out terminals on gas valve or primary control to test. Short or incorrect wiring will damage thermostat and could cause personal injury and/or property damage.

ELECTRICAL DATA

Electrical Rating:

20 to 30 VAC 50/60 Hz. or D.C.

0.05 to 1.5 Amps (Load per terminal)

2.5Amps Maximum Total Load (All terminals combined)

THERMAL DATA

Setpoint Temperature Range: 45°F to 90°F (7°C to 32°C)

Operating Ambient Temperature Range:

32°F to 105°F

Operating Humidity Range:

0 to 90% RH (non-condensing)

Shipping Temperature Range:

-40°F to 150°F

SPECIFICATIONS

APPLICATIONS

For use with:

•Heat/cool systems with up to two stages heat, two stages cool

DO NOT USE WITH:

•Millivolt systems

•Systems exceeding 30 VAC and 2.5 amps

•3-wire zoned hydronic heating systems

WHITE-RODGERS DIVISION		PART NO. 37-5938B
EMERSON ELECTRIC CO.	Printed in U.S.A.
9797 REAVIS ROAD		Replaces 37-5938A
ST. LOUIS, MISSOURI 63123-5398		9912